730994749 has 2 divisors, whose sum is σ = 730994750. Its totient is φ = 730994748.

The previous prime is 730994741. The next prime is 730994753. The reversal of 730994749 is 947499037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705168025 + 25826724 = 26555^2 + 5082^2 .

It is an emirp because it is prime and its reverse (947499037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 730994749 - 2³ = 730994741 is a prime.

It is a super-3 number, since 3×730994749³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 730994696 and 730994705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (730994741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365497374 + 365497375.

It is an arithmetic number, because the mean of its divisors is an integer number (365497375).

Almost surely, 2^730994749 is an apocalyptic number.

It is an amenable number.

730994749 is a deficient number, since it is larger than the sum of its proper divisors (1).

730994749 is an equidigital number, since it uses as much as digits as its factorization.

730994749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1714608, while the sum is 52.

The square root of 730994749 is about 27036.9145613918. The cubic root of 730994749 is about 900.8201367748.

The spelling of 730994749 in words is "seven hundred thirty million, nine hundred ninety-four thousand, seven hundred forty-nine".